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Question

The number of integral solutions of x+1x2+2>14, is

A
1
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B
2
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C
5
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D
None of these
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Solution

The correct option is C 5
x+1x2+2>14
4(x+1)>x2+2
=x24x+24<0
=x24x+46<0
(x2)2(6)2<0
(x26)(x2+6)<0
(x(2+6)) (x(6+2))<0
x(26,2+6)
x(0.4,4.4)
x=0,1,2,3,4
x takes on 5 integer values.
Hence, the answer is 5.

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